related is https://en.wikipedia.org/wiki/Eutrophication https://en.wikipedia.org/wiki/Eutrophication although I think it makes some sense to see the blight as

related is https://en.wikipedia.org/wiki/Eutrophication https://en.wikipedia.org/wiki/Eutrophication although I think it makes some sense to see the blight as representative of a reversal of humanity's changing relationship to nitrogen in the 20th century via the Haber process - bomb-enabling and fertilizer-propagation coming full-circle as being used by a plague that takes human life via nitrogen again.